Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Naval Collieries Standard 1915, price list
'Naval Collieries, Penygraig. List of Prices Paid for Working the different seams of Coal, and all other items of Labour performed above and below Ground. 1915 Standard'. 28 page booklet.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.